Lubricator



J. POWELL.

LUBRIGATOB.. n Patented Sept. 15, 1885-.

(No Model.)

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JAMES POVELL, OF

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SPECFICATION forming part oi' Letters Patent No. 326,521, datedSeptember 15, 1885.

(No model.)

To all wiz/0m it may concern:

Be it known that I, JAMES POWELL, a citizen of the United States,residing at Oincin nati, in the county of Hamilton and State of Ohio,haveinvented certain new and useful lmprovenients in Lubrieators, ofwhich the fol` lowing is a specification, reference being had therein tothe accompanying drawings.

This invention relates to those lubricators which employ an axial rod,stem, or plug for operating the valve or cut-off that regulates thedischarge ot` oil; and my improvement consists in utilizing the upper orouter end ot' the valve-stem as a guide for a reciprocating stopper,which latter, when depressed, permits the cup or reservoir to be tilled.Said stopper plays within a slotted 01 perforated cage or cylinder, andis maintained in its elevated or closed position by a spring that ispreferablylocated within said cage and coiled around the valve-stem, theascent of the stopper being arrested by the th u nib-piece or otherlateral projection of said stem. Furthermore, this cage and a spindlethereof act as a tie or binder that unites the two heads ofthe cup, andsaid spindle or prolongation is usually pro vided with a valve'seat,dischargechannel, and one ormore ports that allow the oil to i'low intosaid channel when the. valve is opened. The abovedescribed devices areso arranged as to enable the ready depression of the stopper by pressureapplied externally of the same, after which act t-he oil can beconveniently poured into the open end of the cage and tlow through theslot-s or openings of the same into the cup or reservoir, as hereinaftermore fully described.

In the annexed drawings, Figure l is a side elevation of my improvedlubricator. Fig. 2 is an axial section thereof, the discharge-valvebeing closed, and the reciprocating stopper being shown in its normal orelevated position. Fig. 3 is an axial section of the upper part of thelubricator, said stopper being depressed. Fig. 4 is a transversesect-ion of the cage, the valve-stem, stopper, and spring being removedtherefrom. Fig. 5 is a plan ot' the under side of said stopper.

The oil cup or reservoir A, which is usually of glass, has a lower head,B, and an upper head, C, which latter is provided with an oritice, c, toreceive a cage, D, that is generally of a cylindrical form,and isfurnished with one or more slots, perforations, or other openings orpassages, d, communicating with the interior of said reservoir. Theupper end of the cage is open and has an enlargement or collar, E, thatrests upon the head O, said enlargement being preferably made in theshape of a nut to facilitate the clamping of the heads B C to the cup;but the lower end of the cage is closed by a head, d', from whichprojects a spindle, F, having an internal thread, f, an external thread,G, one or more lateral ports, H, and a discharge-channel, I.

Engaging with the thread f' is the screwj of a stem or rod, J, thelatter having at its lower end a valve, K, and at top a thumbpiece, L,or other suitable device, wherewith said stem can be convenientlymanipulated.

Adapted to reciprocate within the cage D is astopper, M, provided at itsouter end with an elongation er neck, N, the latter having an axialbore, n, to admit the valve-stein J. The top ot' this neck terminateswith a bead or colla-r, n', that affords a convenient bearing for theringer when the stopper is toV be def pressed. n

Interposed between the stopper M and the head d of the cage is a coiledspring, O, whose stress elevates said stopper and keeps its col.- lar n/in Contact either with the thumb-piece L or other stop of thevalve-stem. The upper coil of this spring iits within an annular groove,m, on the under side of the stopper, which latter is notched on its edgeat m to permit a free escape of air while the reservoir is being iilled.

If desired, the above-described devices may be used in connection with alubricator having a sight-chamber, in which event the external thread,G, of the spindle F would be engaged with the internal thread, p, of thelower section, P, and the latter would be furnished with a channeledshank, R r, for attachment to the journal-bearing. Furthermore, thislower section should have an external screw, S, to engage with aninternal thread, b, of the lower head, B, in order that thesight-chamber T may be securely clamped between said section and head.

It is evident that when the lubricator is properly ttted together thestress of spring O will force the stopper M up so far as the stop IOO Lwill permit, as seen in Fig. 2, thereby closing the mouthof cage D andpreventing dust or other obstructions entering the oil-cup A.

As soon, however, as it is desired to charge 5 said cup with oil orother lubricant, the stopper M is shifted by simply pressing the end ofthe linger against the colla-r n', and when the stopper has been forceddown as far as may be necessary it reaches a position somewhat below theupper ends of the slots or perforations d, as seen in Fig. 3. The oilcan now be freely poured into the upper open end of cage D, and beingunable to descend directly, on account of the obstruction aiorded by thestopper, it is deflected laterally and runs through the slots oropenings d into the reservoir A, the air in the latter escaping at thegroove m. As soon as the reservoir is filled, the finger is removed fromthe collar n', and the spring O immediately restores the stopper to itsnormal orvclosed position, 4the extended bearing of the neck N on thevalvestem J causing said stopper to travel in a correct path andpreventing it binding within the cage D d. After charging the reservoirthe stem J can be turned so as to raise the valve K a greater or lessdistance from its seat at the upper end of the channel I, therebyregulating the discharge of oil.

From this description it will be apparent that the stem J serves thetwofold purpose of operating the discharge-valve and acting as a guidefor coniining the reciprocating stopper to a proper path.

I claim as my invention- I 1. The combination, in an oil-cup, of aAcontinuous or uninterrupted rod or stem for controlling the discharge oflubricant with a spring-actuated stopper adapted to recipro- 40 catealong the upper portion of said stem and uncover one or more inlets, thelower portion l ld rod-stem being screwed into a suitable l and itsupper end being passed comthrough said stopper, thereby serving id guidefor the latter, and permitting the stem to be removed without detachingthe stopper, substantially as described.

2. The combination, in an oil-cup, of a continuous or uninterrupted rodor stem for controlling the discharge of lubricant with a 5ospring-actuated stopper adapted to reciprocate along the upper portionof said stem and uncover one or more inlets, and an inclosing cage orcylinder, the lower portion of said stem being screwed into a. suitablebearing, and its upper end being passed completely through said stopper,thereby serving as a rigid guide for the latter, and permitting the stemto be removed Without detaching the stopper, substantially as described.l

3. The combination, with an oil-cup having a rod or stem controlling thedischarge of lubricant, of a spring-actuated stopper adapted toreciprocate along said rod and within a cage-or cylinder and uncoversone or more inlets of said -cage when properly shifted, said cage beingprovided with the valve-seat and outlet and serving as a tie that clampsthe heads to said cup, substantially as herein described.

4. An improved lubricator consisting of the oil-cup A, having a head, B,screw-threaded at b, and a head, C, having an orifice, c, the cage D,having one or more passages, d, head d, and spindle F, which latter isprovided with interior thread, f, inlet H, dischargechannel I, and aseat for the valve K of stem J, said stem being furnished with a. screw,j, that is adapted to engage with the thread f of the spindle, andhaving a suitable stop, as L, for the reciprocating stopper M, whichstop- 8C per is bored at n to admit the stem J, a spring,

O, being interposed between said stopper'and the head d of the cage, forthe purpose speciied.

In testimony whereof I aix my signature `in presence of two witnesses. Al

JAMES POWELL. Witnesses:

J AMES H. LAYMAN, RANKiN D. J oNEs.

Corrections m Letters Patent No. 326,521.

Itis hereby certified that in Letters lPatent No. 326,521, grantedSeptember 15,1885,

Powell, 'of Cincinnati, Ohio, for 'an improvement in upon theapplication of James Lluloricatorsf7 errors appear in the printedspecification requiring the following correetion:` In lines 38 and 50,page 2, commas should be inserted after theword lubricant 5 and that thesaid Letters Patent should be read With these corrections therein thatthe same may conform to the record of the case in the Patent Ofice.

2er-,i1 day f september, A. D. 1885.

H. L. MULDROW, Acting Secretary of the Interior.

Signed, countersigned, and sealed this [SEAL] p Countersigned M. V.MONTGOMERY,

Commissioner of Patents.

